qga/vss-win32/requester.h

   1 /*
   2  * QEMU Guest Agent VSS requester declarations
   3  *
   4  * Copyright Hitachi Data Systems Corp. 2013
   5  *
   6  * Authors:
   7  *  Tomoki Sekiyama   <tomoki.sekiyama@hds.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #ifndef VSS_WIN32_REQUESTER_H
  14 #define VSS_WIN32_REQUESTER_H
  15
  16 #include <basetyps.h>           /* STDAPI */
  17 #include "qemu/compiler.h"
  18
  19 #ifdef __cplusplus
  20 extern "C" {
  21 #endif
  22
  23 struct Error;
  24
  25 /* Callback to set Error; used to avoid linking glib to the DLL */
  26 typedef void (*ErrorSetFunc)(struct Error **errp,
  27                              const char *src, int line, const char *func,
  28                              int win32_err, const char *fmt, ...)
  29     GCC_FMT_ATTR(6, 7);
  30 typedef struct ErrorSet {
  31     ErrorSetFunc error_setg_win32;
  32     struct Error **errp;        /* restriction: must not be null */
  33 } ErrorSet;
  34
  35 STDAPI requester_init(void);
  36 STDAPI requester_deinit(void);
  37
  38 typedef void (*QGAVSSRequesterFunc)(int *, ErrorSet *);
  39 void requester_freeze(int *num_vols, ErrorSet *errset);
  40 void requester_thaw(int *num_vols, ErrorSet *errset);
  41
  42 #ifdef __cplusplus
  43 }
  44 #endif
  45
  46 #endif